> If the ancient Greeks knew enough chemistry to produce a light sensitive material (and a way to fix the result in place) We can imagine that they might have.

> If the ancient Greeks knew enough chemistry to produce a light sensitive material (and a way to fix the result in place) We can imagine that they might have. According to Greek myth, the centaur Chiron made a silver shield that could capture a likeness. Maybe it was made of Silver nitrate? Add that to the fact the Greeks had a decent understanding of parabolic mirrors and that the aztecs produced optically correct lenses... One can imagine... Only imagine.